Protocardia subquadrata

Protocardia subquadrata

via iDigBio · CC0 · via iDigBio. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.

On record

Recorded, not inferred
Sits inside
ProtocardiaPBDB
Diet
suspension feederPBDB, for Cardiidae
Life habit
infaunalPBDB, for Cardiidae
Motility
facultatively mobilePBDB, for Cardiidae
Vision
blindPBDB, for Bivalvia

Time the record covers

At most 18 million years on record.

Every occurrence read is dated to somewhere between 83.6 Mya and 66 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Late Cretaceous — about 10 of 10 occurrencesLate CretaceousPaleocene — about 0 of 10 occurrences84–83 Mya — about 0.0 occurrences83–83 Mya — about 0.2 occurrences83–82 Mya — about 0.2 occurrences82–82 Mya — about 0.2 occurrences82–81 Mya — about 0.2 occurrences81–80 Mya — about 0.2 occurrences80–80 Mya — about 0.2 occurrences80–79 Mya — about 0.2 occurrences79–79 Mya — about 0.2 occurrences79–78 Mya — about 0.2 occurrences78–77 Mya — about 0.2 occurrences77–77 Mya — about 0.2 occurrences77–76 Mya — about 0.2 occurrences76–75 Mya — about 0.2 occurrences75–75 Mya — about 0.2 occurrences75–74 Mya — about 0.2 occurrences74–74 Mya — about 0.2 occurrences74–73 Mya — about 0.2 occurrences73–72 Mya — about 0.2 occurrences72–72 Mya — about 0.6 occurrences72–71 Mya — about 0.7 occurrences71–70 Mya — about 0.7 occurrences70–70 Mya — about 0.7 occurrences70–69 Mya — about 0.7 occurrences69–69 Mya — about 0.7 occurrences69–68 Mya — about 0.7 occurrences68–67 Mya — about 0.7 occurrences67–67 Mya — about 0.7 occurrences67–66 Mya — about 0.7 occurrences66–66 Mya — about 0.1 occurrences84.1 Mya65.5 Mya

10 occurrences of Protocardia subquadrata on record, most of them in the Late Cretaceous. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.

When

10 occurrences

These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.

Found in

4 formations

Eastend — 49.53°N, 110.29°WEastend — 49.62°N, 110.29°WBearpaw — 49.36°N, 110.42°WBearpaw — 50.67°N, 107.73°WFox Hills — 45.14°N, 100.88°WPawkowki — 49.01°N, 111.61°W

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The named rock units Protocardia subquadrata has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Protocardia subquadrata and its relatives

Late Cretaceous

Where Protocardia subquadrata and its relatives were recorded in the Late Cretaceous.

Found in the same rock

156 taxa

The Paleobiology Database records 10 sites for Protocardia subquadrata, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.

This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.

Entered from

4 references

Each of the 10 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Each entry links to the Paleobiology Database's own record for the work.

Media and terms

Media content1

Picture of Protocardia subquadrata

Source
iDigBio
Credit
via iDigBio
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Protocardia subquadrata was found in Sketchfab.

Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itProtocardia through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Evans and Shumard 1857)